Betting your bitcoins may result on a lose, you shouldnt gamble what you can't afford to lose.
If you plan to earn money using bitcoin do not gamble it, is the same as fiat, if you have money in hand will you go to the casino ?
Betting anything would have either the positive outcome or the negative outcome. It's not going to be easy to predict what you can do but definitely, it's something that you should know that you can afford to lose. It's going to be hard if you don't, it might cost you your money.